import {
  BookModel
} from '../../models/book.js'
import {
  LikeModel
} from '../../models/like.js'
const bookModel = new BookModel()
const likeModel = new LikeModel()
Page({

  /**
   * 页面的初始数据
   */
  data: {
    comments: [],
    book: null,
    likeStatus: false,
    likeCount: 0,
    posting: false
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad: function(options) {
    wx.showLoading()
    const bid = options.bid,
      detail = bookModel.getDetail(bid),
      comments = bookModel.getComments(bid),
      likeStatus = bookModel.getLikeStatus(bid)

    // .race 竞争
    Promise.all([detail, comments, likeStatus])
    .then(res => {
      this.setData({
        book: res[0],
        comments: res[1].comments,
        likeStatus: res[2].like_status,
        likeCount: res[2].fav_nums
      })
      wx.hideLoading()
    })
  },

  onLike(e) {
    const like_or_cancel = e.detail.behavior
    likeModel.like(like_or_cancel, this.data.book.id, 400)
  },

  onFakePost(e) {
    this.setData({
      posting: true
    })
  },

  onCancel(e) {
    this.setData({
      posting: false
    })
  },

  onPost(e) {
    const comment = e.detail.text || e.detail.value

    if (!comment) {
      return
    }

    if (comment.length > 12) {
      wx.showToast({
        title: '短评最多12个字',
        icon: 'none'
      })
      return
    }

    bookModel.postComment(this.data.book.id, comment)
      .then(res => {
        wx.showToast({
          title: '+ 1',
          icon: 'none'
        })

        this.data.comments.unshift({
          content: comment,
          nums: 1
        })

        this.setData({
          comments: this.data.comments,
          posting: false
        })
      })
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady: function() {

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow: function() {

  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide: function() {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload: function() {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh: function() {

  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom: function() {

  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage: function() {

  }
})